Leucopogon costatus
Leucopogon costatus | |
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In the Australian National Botanic Gardens | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Ericales |
Family: | Ericaceae |
Genus: | Leucopogon |
Species: | L. costatus
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Binomial name | |
Leucopogon costatus | |
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Occurrence data from AVH | |
Synonyms[1] | |
Styphelia costata F.Muell. |
Leucopogon costatus, commonly known as twiggy beard-heath,[2] is a species of flowering plant in the heath family Ericaceae and is endemic to southern continental Australia. It is an erect or straggling shrub with broadly egg-shaped, stem-clasping leaves, and white, tube-shaped flowers, the petals densely bearded on the inside.
Description
Leucopogon costatus is a slender, erect or straggling erect shrub that typically grows to a height of up to 50 cm (20 in) and has softly-hairy young branchlets. Its leaves are broadly egg-shaped, 1.5–5 mm (0.059–0.197 in) long and 1.0–3.5 mm (0.039–0.138 in) wide with a stem-clasping base. The flowers are arranged in spikes of up to four 4–7 mm (0.16–0.28 in) long in leaf axils or on the ends of branches, with egg-shaped bracteoles 1.0–1.3 mm (0.039–0.051 in) long at the base. The sepals are egg-shaped, 1.6–2.3 mm (0.063–0.091 in) long, the petals white and joined at the base to form a cylindrical or bell-shaped tube 1.1–1.5 mm (0.043–0.059 in) long, the lobes 1.2–1.8 mm (0.047–0.071 in) long and densely bearded on the inside.[2][3]
Taxonomy
Twiggy beard-heath was first formally described in 1885 by Ferdinand von Mueller who gave it the name Styphelia costata in Southern Science Record from specimens collected by Otto Tepper on Kangaroo Island.[4][5] In 1918, John McConnell Black changed the name to Leucopogon costatus in the Transactions and Proceedings of the Royal Society of South Australia.[6] The specific epithet (costatus) means "ribbed".[7]
Distribution and habitat
Leucopogon costatus grows mallee, scrub and heathland in the Little Desert National Park and southern Big Desert regions of Victoria and in the south-east of South Australia, including Kangaroo Island.[3][2]
References
- ^ a b "Leucopogon costatus". Australian Plant Census. Retrieved 13 June 2022.
- ^ a b c Stajsic, Val. "Leucopogon costatus". Royal Botanic Gardens Victoria. Retrieved 13 June 2022.
- ^ a b "Leucopogon costatus". State Herbarium of South Australia. Retrieved 13 June 2022.
- ^ "Styphelia costata". APNI. Retrieved 13 June 2022.
- ^ von Mueller, Ferdinand (1885). "Definitions of some new Australian plants". Southern Science Record. 1 (4): 75–76. Retrieved 13 June 2022.
- ^ "Leucopogon costatus". APNI. Retrieved 13 June 2022.
- ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 171. ISBN 9780958034180.
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- Leucopogon
- Ericales of Australia
- Flora of Victoria (Australia)
- Flora of South Australia
- Plants described in 1885
- Taxa named by Ferdinand von Mueller